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RUI: Preparation and Characterization of Dendrimer Templated Au-M Nanoparticles and Catalysts

RUI：树枝状聚合物模板 Au-M 纳米粒子和催化剂的制备和表征

基本信息

批准号：
1012395
负责人：
Bert Chandler
金额：
$ 26万
依托单位：
Trinity University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2010
资助国家：
美国
起止时间：
2010-09-01 至 2014-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1012395&HistoricalAwards=false
关键词：
RUI Preparation Characterization Dendrimer Templated

项目摘要

Professor Bert D. Chandler of Trinity University is supported by the Chemical Catalysis Program in the Division of Chemistry to develop new synthetic techniques for the preparation of solid oxide supported bimetallic nanoparticle catalysts and study reaction mechanisms over these heterogeneous catalysts. The bimetallic nanoparticles will be prepared in solution, using a dendrimer encapsulation synthetic route and then deposited onto high surface area support. Two kinetics-based analytical techniques will be employed to probe and evaluate the catalytic activity of the bimetallic nanoparticles: Selective inhibition will be used to interrogate the CO oxidation active sites and Hammett relationships for aerobic benzyl alcohol oxidation will be used to probe changes in nanoparticle surface charge. Supported bimetallic nanoparticles are an important class of heterogeneous catalysts that are employed throughout the chemical industry. A fundamental understanding of the interplay between metal functions in bimetallic catalysts will informs the design of new catalysts with less reliance on expensive platinum group metals. Integrating undergraduate students in a primarily undergraduate institution into this research project early in their chemical career will motivate them to pursue this line of research and consequently enhance the chemical catalysis workforce.

美国三一大学化学系化学催化项目的教授Bert D.Chandler致力于开发制备固体氧化物负载双金属纳米粒子催化剂的新合成技术，并研究这些非均相催化剂上的反应机理。双金属纳米粒子将通过树枝状大分子包裹的合成路线在溶液中制备，然后沉积到高比表面积的载体上。两种基于动力学的分析技术将被用来探测和评价双金属纳米粒子的催化活性：选择性抑制将被用来询问CO氧化活性中心，Hammett关系将被用来探测纳米粒子表面电荷的变化。负载型双金属纳米粒子是一类重要的多相催化剂，广泛应用于化学工业中。对双金属催化剂中金属功能之间相互作用的基本了解将有助于设计对昂贵的铂族金属的依赖较少的新催化剂。让本科院校的本科生在他们化学职业生涯的早期就加入这个研究项目，将激励他们从事这一领域的研究，从而增强化学催化工作队伍。